# -*- coding: utf-8 -*-
"""
@File    : qinghai_haidong1_policy
@Author  : caojy
"""
import scrapy
from apps.tax_policy.tax_policy.items import NetTaxPolicyItem as Item
from apps.tax_policy.tax_policy.spiders.base_spider.base_tax_policy_spider import BaseTaxPolicySpider


class QinghaiShaidong1Policy(BaseTaxPolicySpider):
    name = 'qinghai_haidong1_policy'

    province = '青海省'
    city = '海东市'
    county = ''
    park = ''

    def start_requests(self):
        for source, county, url in [
            ['海东市人民政府', '', 'http://www.haidong.gov.cn/html/488/List.html'],
        ]:
            item = {'source': source, 'county': county}
            yield scrapy.Request(url, callback=self.parse_list, meta={"item": item, 'page': 1})

    def parse_list(self, response, **kwargs):
        prev_item = response.meta.get('item')
        for elem in response.xpath(
                "//tr/td[not(@id)]//a[contains(@href, 'htm') and @title]/ancestor::td[string-length(string(.))>=10] | "
                "//div[@class='ar-list']//li//a[contains(@href, 'htm') or @title]/ancestor::li[string-length(string(.))>=10] | "
                "//li[@class='clearfix']//a[contains(@href, 'htm') or @title]/ancestor::li[string-length(string(.))>=10]"
                ""):
            item = Item()
            item['source_url'] = elem.xpath(""".//a/@href""").re_first(r"""(.*/.*)""")
            item['source_url'] = response.urljoin(item['source_url'])
            item['publish_date'] = elem.xpath("""string(.)""").get()
            if prev_item is not None:
                for key, value in prev_item.items():
                    item[key] = value
            if not item['source_url']:
                continue
            print(response.url, item['source_url'])
            yield response.follow(item['source_url'], callback=self.parse_detail, meta={'item': item})
        next_param = response.xpath("""//a[text()='下页' or text()='下一页' or text()='»']/@href""").re("\'(.*?)\'")
        if next_param:
            page = response.meta['page'] + 1
            params = {
                '__EVENTTARGET': next_param[0],
                '__EVENTARGUMENT': next_param[1],
                '__VIEWSTATE': response.xpath('//*[@id="__VIEWSTATE"]/@value').get(),
            }
            print('next', next_param, 'page', page)
            yield scrapy.FormRequest(response.url, method='POST', formdata=params, callback=self.parse_list, meta={'item': prev_item, "page": page}, dont_filter=True)
        else:
            print('not next_url', response.url)

    def parse_detail(self, response, **kwargs):
        item = Item() if response.meta.get('item') is None else response.meta.get('item')
        item['title'] = response.xpath("""string(//meta[@name='ArticleTitle']/@content)""").get()
        item['publish_date'] = response.xpath("""string(//meta[@name='PubDate']/@content)""").get() or response.xpath("//*[@class='fbrq']/text()").get()
        item['content'] = response.xpath(""".""").get()
        # item['source'] = self.source
        item['province'] = self.province
        item['city'] = self.city
        # item['county'] = self.county
        item['park'] = self.park
        yield item


if __name__ == "__main__":
    from scrapy import cmdline

    cmdline.execute("scrapy crawl qinghai_haidong1_policy".split())
